I have a PHP function that outputs quote marks like so when rendered in the html.
onload="this.rel='stylesheet'"
What I want is the following:
onload="this.rel='stylesheet'"
Here is the function causing the first example to happen - does anyone know how I can solve this?
public function get_css($opts, $index, $count)
{
$out = array();
$version = filemtime($_SERVER['DOCUMENT_ROOT'].'/assets/css/app.min.css');
$str = "this.rel='stylesheet'";
$out[] = $this->_single_tag('link', array(
'rel'=>'preload',
'as'=>'style',
'type'=>'text/css',
'href'=>'/assets/css/app.min.'.$version.'.css',
'onload'=>$str,
));
return implode("\n\t", $out)."\n";
}
Here is the function for _single_tag
protected function _single_tag($tag=false, array $attrs)
{
if ($tag===false) return;
return PerchXMLTag::create($tag, 'single', $attrs);
}
The problem comes from the PerchXMLTag::create() method which does some HTML encoding on the values supplied to it.
Looking at the Perch documentation there doesn't seem to be a way to disable this, so my suggestion would be to replace the code within the get_css function with something that just outputs the raw HTML:
public function get_css($opts, $index, $count)
{
$out = array();
$version = filemtime($_SERVER['DOCUMENT_ROOT'].'/assets/css/app.min.css');
$str = "this.rel='stylesheet'";
$out[] = "<link rel='preload' as='style' type='text/css' href='/assets/css/app.min.{$version}.css' onload='{$str}' />";
return implode("\n\t", $out)."\n";
}
public function get_css($opts, $index, $count)
{
$out = array();
$version = filemtime($_SERVER['DOCUMENT_ROOT'].'/assets/css/app.min.css');
$str = "this.rel=\"stylesheet\"";
$out[] = $this->_single_tag('link', array(
'rel'=>'preload',
'as'=>'style',
'type'=>'text/css',
'href'=>'/assets/css/app.min.'.$version.'.css',
'onload'=>$str,
));
return implode("\n\t", $out)."\n";
}
Try with that.
Related
I want to pass a variable to a language file. I have created MY_language.php in application/core/MY_language.php.
class MY_Language extends CI_Lang
{
public function __construct()
{
parent::__construct();
}
function line($line, $params = null)
{
$return = parent::line($line);
if ($return === false) {
return "!-- $line --!";
} else {
if (!is_null($params)) {
$return = $this->_ni_line($return, $params);
}
return $return;
}
}
private function _ni_line($str, $params)
{
$return = $str;
$params = is_array($params) ? $params : array($params);
$search = array();
$cnt = 0;
foreach ($params as $param) {
$search[$cnt] = '/\\$' . ($cnt + 1) . '/';
$cnt++;
}
$return = preg_replace($search, $params, $return);
return $return;
}
}
This file must override the CodeIgniter line() function and accept an array of parameters as input, and insert into string language everywhereIi have type $ in my language text.
$lang['delete'] = "$name was deleted";
The result of the above code is:
sam was deleted
in codeigniter 3 the language your core language file must be PREFIX_lang
Since you are adding parameters to the line() function you are unable to override it.
Use a different name like magic_line()
I have a function called get_config() and an array called $config.
I call the function by using get_config('site.name') and am looking for a way to return the value of $config so for this example, the function should return $config['site']['name'].
I'm nearly pulling my hair out - trying not to use eval()! Any ideas?
EDIT: So far I have:
function get_config($item)
{
global $config;
$item_config = '';
$item_path = '';
foreach(explode('.', $item) as $item_part)
{
$item_path .= $item."][";
$item = $config.{rtrim($item_path, "][")};
}
return $item;
}
This should work:
function get_config($config, $string) {
$keys = explode('.', $string);
$current = $config;
foreach($keys as $key) {
if(!is_array($current) || !array_key_exists($key, $current)) {
throw new Exception('index ' . $string . ' was not found');
}
$current = $current[$key];
}
return $current;
}
you could try something like...
function get_config($item)
{
global $config;
return $config[{str_replace('.','][',$item)}];
}
Inside your get_config function, you can parse the string using explode function in php
function get_config($data){
$pieces = explode(".", $data);
return $config[$pieces[0]][$pieces[1]];
}
I'm making a simple PHP Template system but I'm getting an error I cannot solve, the thing is the layout loads excellent but many times, can't figure how to solve, here my code
Class Template {
private $var = array();
public function assign($key, $value) {
$this->vars[$key] = $value;
}
public function render($template_name) {
$path = $template_name.'.tpl';
if (file_exists($path)) {
$content = file_get_contents($path);
foreach($this->vars as $display) {
$newcontent = str_replace(array_keys($this->vars, $display), $display, $content);
echo $newcontent;
}
} else {
exit('<h1>Load error</h1>');
}
}
}
And the output is
Title is : Welcome to my template system
Credits to [credits]
Title is : [title]
Credits to Credits to Alvaritos
As you can see this is wrong, but don't know how to solve it.
You're better off with strtr:
$content = file_get_contents($path);
$new = strtr($content, $this->vars);
print $new;
str_replace() does the replaces in the order the keys are defined. If you have variables like array('a' => 1, 'aa' => 2) and a string like aa, you will get 11 instead of 2. strtr() will order the keys by length before replacing (highest first), so that won't happen.
Use this:
foreach($this->vars as $key => $value)
$content = str_replace($key,$value,$content);
echo $content;
Having a string like
12345.find_user.find_last_name
how can i split at the charachter "." and convert it to a function-call:
find_last_name(find_user(12345));
and so on....could be of N-Elements (n-functions to run)....how do i do this effectivly, performance-wise also?
Edit, here is the solution based on your replies
thanks Gaurav for your great help. Here is my complete solution based on yours:
i protected the foreach with if(function_exists($function)){ to protect the whole thing from fatal php errors, and i added a complete example:
$mystring = '12345.find_user.find_last_name';
convert_string_to_functions($mystring);
function convert_string_to_functions($mystring){
$functions = explode('.', $mystring);
$arg = array_shift($functions);
foreach($functions as $function){
if(function_exists($function)){
$arg = $function($arg);
} else {
echo 'Function '.$function.' Not found';
}
}
echo $arg;
}
function find_last_name($mystring=''){
return $mystring.' i am function find_last_name';
}
function find_user($mystring=''){
return $mystring.' i am function find_user';
}
$string = '12345.find_user.find_last_name';
$functions = explode('.', $string);
$arg = array_shift($functions);
foreach($functions as $function){
$arg = $function($arg);
}
echo $arg;
I've got a multidimensional associative array which includes an elements like
$data["status"]
$data["response"]["url"]
$data["entry"]["0"]["text"]
I've got a strings like:
$string = 'data["status"]';
$string = 'data["response"]["url"]';
$string = 'data["entry"]["0"]["text"]';
How can I convert the strings into a variable to access the proper array element? This method will need to work across any array at any of the dimensions.
PHP's variable variables will help you out here. You can use them by prefixing the variable with another dollar sign:
$foo = "Hello, world!";
$bar = "foo";
echo $$bar; // outputs "Hello, world!"
Quick and dirty:
echo eval('return $'. $string . ';');
Of course the input string would need to be be sanitized first.
If you don't like quick and dirty... then this will work too and it doesn't require eval which makes even me cringe.
It does, however, make assumptions about the string format:
<?php
$data['response'] = array(
'url' => 'http://www.testing.com'
);
function extract_data($string) {
global $data;
$found_matches = preg_match_all('/\[\"([a-z]+)\"\]/', $string, $matches);
if (!$found_matches) {
return null;
}
$current_data = $data;
foreach ($matches[1] as $name) {
if (key_exists($name, $current_data)) {
$current_data = $current_data[$name];
} else {
return null;
}
}
return $current_data;
}
echo extract_data('data["response"]["url"]');
?>
This can be done in a much simpler way. All you have to do is think about what function PHP provides that creates variables.
$string = 'myvariable';
extract(array($string => $string));
echo $myvariable;
done!
You can also use curly braces (complex variable notation) to do some tricks:
$h = 'Happy';
$n = 'New';
$y = 'Year';
$wish = ${$h.$n.$y};
echo $wish;
Found this on the Variable variables page:
function VariableArray($data, $string) {
preg_match_all('/\[([^\]]*)\]/', $string, $arr_matches, PREG_PATTERN_ORDER);
$return = $arr;
foreach($arr_matches[1] as $dimension) { $return = $return[$dimension]; }
return $return;
}
I was struggling with that as well,
I had this :
$user = array('a'=>'alber', 'b'=>'brad'...);
$array_name = 'user';
and I was wondering how to get into albert.
at first I tried
$value_for_a = $$array_name['a']; // this dosen't work
then
eval('return $'.$array_name['a'].';'); // this dosen't work, maybe the hoster block eval which is very common
then finally I tried the stupid thing:
$array_temp=$$array_name;
$value_for_a = $array_temp['a'];
and this just worked Perfect!
wisdom, do it simple do it stupid.
I hope this answers your question
You would access them like:
print $$string;
You can pass by reference with the operator &. So in your example you'll have something like this
$string = &$data["status"];
$string = &$data["response"]["url"];
$string = &$data["entry"]["0"]["text"];
Otherwise you need to do something like this:
$titular = array();
for ($r = 1; $r < $rooms + 1; $r ++)
{
$title = "titular_title_$r";
$firstName = "titular_firstName_$r";
$lastName = "titular_lastName_$r";
$phone = "titular_phone_$r";
$email = "titular_email_$r";
$bedType = "bedType_$r";
$smoker = "smoker_$r";
$titular[] = array(
"title" => $$title,
"first_name" => $$firstName,
"last_name" => $$lastName,
"phone" => $$phone,
"email" => $$email,
"bedType" => $$bedType,
"smoker" => $$smoker
);
}
There are native PHP function for this:
use http://php.net/manual/ru/function.parse-str.php (parse_str()).
don't forget to clean up the string from '"' before parsing.
Perhaps this option is also suitable:
$data["entry"]["0"]["text"];
$string = 'data["entry"]["0"]["text"]';
function getIn($arr, $params)
{
if(!is_array($arr)) {
return null;
}
if (array_key_exists($params[0], $arr) && count($params) > 1) {
$bf = $params[0];
array_shift($params);
return getIn($arr[$bf], $params);
} elseif (array_key_exists($params[0], $arr) && count($params) == 1) {
return $arr[$params[0]];
} else {
return null;
}
}
preg_match_all('/(?:(\w{1,}|\d))/', $string, $arr_matches, PREG_PATTERN_ORDER);
array_shift($arr_matches[0]);
print_r(getIn($data, $arr_matches[0]));
P.s. it's work for me.